Calculator Inputs
Example Data Table
| Race | Swim Pace | Bike Speed | Run Pace | T1 | T2 | Extra Stop | Estimated Total |
|---|---|---|---|---|---|---|---|
| Sprint | 1:55 /100 m | 30.00 km/h | 5:00 /km | 3.00 min | 2.00 min | 0.00 min | 1:26:23 |
| Olympic | 1:50 /100 m | 33.00 km/h | 4:45 /km | 3.50 min | 2.50 min | 1.00 min | 2:40:16 |
| Half | 2:00 /100 m | 31.00 km/h | 5:10 /km | 4.00 min | 3.00 min | 2.00 min | 5:22:03 |
| Full | 2:05 /100 m | 28.00 km/h | 5:35 /km | 5.00 min | 4.00 min | 3.00 min | 11:44:32 |
Formula Used
Swim Time = (Swim Distance ÷ 100) × Swim Pace per 100 units
Bike Time = Bike Distance ÷ Bike Speed
Run Time = Run Distance × Run Pace per distance unit
Total Time = Swim Time + T1 + Bike Time + T2 + Run Time + Extra Stop Time
Segment Share % = (Segment Time ÷ Total Time) × 100
Bike time is converted from hours into minutes and seconds for display. Overall pace is computed from total time divided by full course distance.
How to Use This Calculator
- Choose a preset race or select custom for your own distances.
- Pick metric or imperial units before entering paces and distances.
- Enter swim pace as time per 100 meters or 100 yards.
- Enter bike speed in km/h or mph.
- Enter run pace as time per kilometer or per mile.
- Add T1, T2, and any extra stop time you expect.
- Optionally add a goal finish time to compare projection versus target.
- Press Calculate Splits to see the result, chart, segment shares, and export options above the form.
Frequently Asked Questions
1. What does this triathlon split calculator estimate?
It estimates swim, bike, run, transition, and extra stop times. It also shows total finish time, segment shares, overall pace, and goal comparison.
2. Can I use it for sprint, Olympic, half, and full races?
Yes. The preset menu supports common race formats, and custom mode lets you enter any course distance for training simulations or nonstandard events.
3. How should I enter swim pace?
Enter swim pace as time per 100 meters or 100 yards, depending on your selected unit system. Formats like 1:45 or 2:05 work well.
4. Does the calculator include transitions?
Yes. T1 and T2 are included directly, and you can also add extra stop time for aid, restroom breaks, or mechanical issues.
5. Why is bike speed entered differently from run pace?
Cycling is commonly planned by average speed, while running is usually planned by pace per kilometer or mile. This matches how most athletes train.
6. What does segment share mean?
Segment share shows how much of your total finish time each leg uses. It helps identify where pacing changes can make the biggest impact.
7. Can I compare my projection against a goal time?
Yes. Add a goal finish time, and the calculator will tell you whether your projected total is faster, slower, or exactly on target.
8. Is this enough for race-day planning?
It is a strong planning tool, but weather, terrain, drafting rules, fatigue, nutrition, and course congestion can still change real race performance.